Find research datasets worth reusing

Figure 1 in Phylogenetic analyses suggest that Psammomitra (Ciliophora, Urostylida) should represent an urostylid family, based on small subunit rRNA and alpha-tubulin gene sequence information

Figure 1. Morphology and infraciliature of Psammomitra retractilis (F–J, from Song & Warren, 1996). A, B, F, individuals in extended states to show the typical body shapes. Arrowheads in (A) mark the long, dominant membranelles. C, lateral view of a contracted specimen. D, posterior part, to demonstrate the long dorsal cilia. E, anterior part. Arrowheads indicate the long membranelles, whereas arrows mark the dorsal cilia. G, H, dorsal and lateral views of contracted cells. I, J, ventral and dorsal views to show the infraciliature and macronuclear nodules. Scale bars: A, C, D, F = 40 Mm; E = 30 Mm.

Figure 3 in Phylogenetic analyses suggest that Psammomitra (Ciliophora, Urostylida) should represent an urostylid family, based on small subunit rRNA and alpha-tubulin gene sequence information

Figure 3. Maximum parsimony phylogeny of small subunit rRNA genes. Psammomitra is highlighted in black, and holostichids are enclosed in rectangles. Thick branches and arrows denote position of investigated species. Numbers on branches are values generated from 1000 bootstrap replicates.

Figure 2 in Phylogenetic analyses suggest that Psammomitra (Ciliophora, Urostylida) should represent an urostylid family, based on small subunit rRNA and alpha-tubulin gene sequence information

Figure 2. Phylogenetic tree based on small subunit rRNA sequences showing the position of Psammomitra retractilis, by Bayesian inferences applying the GTR + G + I model. '-' reflects disagreement between a method and the reference Bayesian tree at a given node. The fully supported (1.00/100%/100%) branches are marked with solid circles. Psammomitra is shaded black, and holostichids are enclosed in rectangles. Thick branches and arrows denote position of investigated species. The scale bar corresponds to five substitutions per 100 nucleotide positions. Infraciliature of Oxytricha and Uroleptus (from Foissner et al., 2004), Amphisiella (from Li et al., 2007), Trachelostyla (from Gong et al., 2006), and Holosticha (from Hu & Song, 2001) are also shown.

Figure 4 in Phylogenetic analyses suggest that Psammomitra (Ciliophora, Urostylida) should represent an urostylid family, based on small subunit rRNA and alpha-tubulin gene sequence information

Figure 4. Bayesian trees based on different data sets showing phylogenetic relationships amongst Spirotrichea. '-' reflects disagreement between the maximum likelihood/ maximum parsimony method and the reference Bayesian tree at a given node. The fully supported (1.00/100%/100%) branches are marked with solid circles. Species sequenced in the present study are shown in bold type. The scale bar corresponds to 10/2 substitutions per 100 nucleotide positions. A, phylogenetic analyses inferred from alpha-tubulin gene sequences data set. B, phylogenetic analyses inferred from alpha-tubulin amino acids data set.

Figure 6 in Mitochondrial DNA sequences of the Afro-Arabian spiny-tailed lizards (genus Uromastyx; family Agamidae): phylogenetic analyses and evolution of gene arrangements

Figure 6. Hypothetical radiation schemes for Uromastyx and possibly relevant geological events. Approximate distribution range for each taxon (Wilms, 2001) is shown with its abbreviated name: Hard (Uromastyx hardwickii), Aca (U. acanthinura), Mali (U. d. maliensis), Gey (U. geyri), Dis (U. d. dispar), Oce (U. ocellata), Mac (U. macfadyeni), Aeg (U. a. aegyptia), Mic (U. a. microlepis), Orn (U. ornata) and Ben (U. benti).

Figure 5 in Mitochondrial DNA sequences of the Afro-Arabian spiny-tailed lizards (genus Uromastyx; family Agamidae): phylogenetic analyses and evolution of gene arrangements

Figure 5. Neighbour-joining tree constructed based on maximum likelihood distances from 1503 alignable nucleotide sites (the HKY model and transition/transversion ratio of 3.48). The tree was rooted with Chamaeleo africanus as an outgroup. Bootstrap probabilities are shown for neighbour joining, maximum likelihood and maximum parsimony analyses (from left to right). Underlined values mean that the branch was not reconstructed in the best tree topology by the corresponding analyses. Note that two distinct sequence haplotypes are included for Uromastyx acanthinura and U. ocellata. See Material and methods for more details on the analytical conditions. The nucleotide sequences taken from the database are: Chamaeleo africanus (accession No., AF448743), Chlamydosaurus kingii (AF128469), Physignathus lesueurii (AF128463), Acanthosoura capra (AF128498), Salea horsfieldii (AF128490), Trapelus savignii (AF128512), Leiolepis guentherpetersi (AF128461), Leiolepis belliana (U82689), Laudakia caucasia (AF028681) and Laudakia lehmanni (AF028677).

Figure 4 in Mitochondrial DNA sequences of the Afro-Arabian spiny-tailed lizards (genus Uromastyx; family Agamidae): phylogenetic analyses and evolution of gene arrangements

Figure 4. Secondary structures of the inserted sequences found between tRNAGln and tRNAIle genes. The 128 bp insert for Uromastyx ornata can assume alternative secondary structures either with an extremely stable and long stem region (A) or with a clover-leaf structure for the second tRNAGln gene (or pseudogene) and a stable stem-and-loop structure (B). The 59 bp inserted for U. ocellata may also assume a somewhat less stable stem-and-loop structure (C). Heavy-strand sequences are shown and numbers refer to the corresponding positions in their light-strand sequences shown in Fig. 3A. Bars in stems represent Watson–Crick base pairs and dots stand for wobble G–U pairs for RNA.

Figure 2 in Mitochondrial DNA sequences of the Afro-Arabian spiny-tailed lizards (genus Uromastyx; family Agamidae): phylogenetic analyses and evolution of gene arrangements

Figure 2. Evolution of mitochondrial gene organization in Uromastyx. A, typical vertebrate organization plesiomorphic to lizards. B, typical organization for acrodont lizards including Leiolepis and likely the direct common ancestor of Leiolepis and Uromastyx. C, typical Uromastyx organization in which the putative origin of light-strand replication (black box) disappeared from the WANCY tRNA gene cluster. D, organization for U. ornata and likely for the direct common ancestor of U. ornata and U. ocellata, which has an insertion containing a stem-and-loop structure (hatched box) and the second tRNAGln gene or pseudogene (Q*). E, organization for U. ocellata in which Q* disappeared. See Figs 3 and 4 for sequences and secondary structures of the inserted region in U. ornata and U. ocellata.

Figure 3 in Mitochondrial DNA sequences of the Afro-Arabian spiny-tailed lizards (genus Uromastyx; family Agamidae): phylogenetic analyses and evolution of gene arrangements

Figure 3. Nucleotide sequences of the inserted region between the tRNA Gln and tRNAIle genes. A, alignment between the 128 bp insertion in Uromastyx ornata and the 59 bp insertion in U. ocellata (65% identity). B, alignment between the original tRNAGln gene and its second copy within the inserted region for U. ornata (49% identity). Light-strand and heavystrand sequences are shown for A and B, respectively. Dots indicate identity with the first sequence and dashes denote a gap.

Figure 1 in Mitochondrial DNA sequences of the Afro-Arabian spiny-tailed lizards (genus Uromastyx; family Agamidae): phylogenetic analyses and evolution of gene arrangements

Figure 1. Position of primers used for amplification and/or sequencing. See Table 1 for the primer sequences; numbers of primers correspond to those in Table 1.